US1764154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch
Assignee: Individual
•
Filing: 1929-04-15
•
Granted: 1930-06-17
•
Expires: 1949-04-15
Abstract
No abstract record available.
Inventors
- 👤 Otto P Cramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:31
CPC Classifications
E; E05; E05B; E05B15/00; E05B15/10; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093; Y10T70/5155; Y10T70/5199; Y10T70/5246; Y10T70/5296; Y10T70/5319; Y10T70/5341; Y10T70/5372; Y10T70/5385; Y10T70/5389; Y10T70/55; Y10T70/5531; Y10T70/70; Y10T70/7006; Y10T70/80; Y10T70/8892
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1933-06-16 | 1933-12-16 | 1934-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-06-16 | 1937-12-16 | 1938-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-06-16 | 1941-12-16 | 1942-06-17 | $7700.00 | Window Closed / Lapsed |